phylmd/CV30_routines/cv30_closure.f

module cv30_closure_m

  implicit none

contains

  SUBROUTINE cv30_closure(nloc, ncum, nd, icb, inb, pbase, p, ph, tv, buoy, &
       sig, w0, cape, m)

    ! Vectorization: S. Bony

    use cv30_param_m, only: alpha, beta, dtcrit, minorig, nl
    use cv_thermo_m, only: rrd

    ! input:
    integer, intent(in):: ncum, nd, nloc
    integer, intent(in):: icb(nloc), inb(nloc)
    real pbase(nloc)
    real p(nloc, nd), ph(nloc, nd+1)
    real tv(nloc, nd), buoy(nloc, nd)

    ! input/output:
    real sig(nloc, nd), w0(nloc, nd)

    ! output:
    real cape(nloc)
    real m(nloc, nd)

    ! Local:
    integer i, j, k, icbmax
    real deltap, fac, w, amu
    real dtmin(nloc, nd), sigold(nloc, nd)

    !-------------------------------------------------------

    ! Initialization

    do k=1, nl
       do i=1, ncum
          m(i, k)=0.0
       enddo
    enddo

    ! Reset sig(i) and w0(i) for i>inb and i<icb

    ! update sig and w0 above LNB:

    do k=1, nl-1
       do i=1, ncum
          if ((inb(i) < (nl-1)).and.(k >= (inb(i)+1)))then
             sig(i, k)=beta*sig(i, k) &
                  +2.*alpha*buoy(i, inb(i))*ABS(buoy(i, inb(i)))
             sig(i, k)=AMAX1(sig(i, k), 0.0)
             w0(i, k)=beta*w0(i, k)
          endif
       end do
    end do

    ! compute icbmax:

    icbmax=2
    do i=1, ncum
       icbmax=MAX(icbmax, icb(i))
    end do

    ! update sig and w0 below cloud base:

    do k=1, icbmax
       do i=1, ncum
          if (k <= icb(i))then
             sig(i, k)=beta*sig(i, k)-2.*alpha*buoy(i, icb(i))*buoy(i, icb(i))
             sig(i, k)=amax1(sig(i, k), 0.0)
             w0(i, k)=beta*w0(i, k)
          endif
       end do
    end do

    ! Reset fractional areas of updrafts and w0 at initial time
    ! and after 10 time steps of no convection

    do k=1, nl-1
       do i=1, ncum
          if (sig(i, nd) < 1.5.or.sig(i, nd) > 12.0)then
             sig(i, k)=0.0
             w0(i, k)=0.0
          endif
       end do
    end do

    ! Calculate convective available potential energy (cape),
    ! vertical velocity (w), fractional area covered by
    ! undilute updraft (sig), and updraft mass flux (m)

    do i=1, ncum
       cape(i)=0.0
    end do

    ! compute dtmin (minimum buoyancy between ICB and given level k):

    do i=1, ncum
       do k=1, nl
          dtmin(i, k)=100.0
       enddo
    enddo

    do i=1, ncum
       do k=1, nl
          do j=minorig, nl
             if ((k >= (icb(i)+1)).and.(k <= inb(i)).and. &
                  (j >= icb(i)).and.(j <= (k-1)))then
                dtmin(i, k)=AMIN1(dtmin(i, k), buoy(i, j))
             endif
          end do
       end do
    end do

    ! the interval on which cape is computed starts at pbase :

    do k=1, nl
       do i=1, ncum

          if ((k >= (icb(i)+1)).and.(k <= inb(i))) then

             deltap = MIN(pbase(i), ph(i, k-1))-MIN(pbase(i), ph(i, k))
             cape(i)=cape(i)+rrd*buoy(i, k-1)*deltap/p(i, k-1)
             cape(i)=AMAX1(0.0, cape(i))
             sigold(i, k)=sig(i, k)

             sig(i, k)=beta*sig(i, k)+alpha*dtmin(i, k)*ABS(dtmin(i, k))
             sig(i, k)=amax1(sig(i, k), 0.0)
             sig(i, k)=amin1(sig(i, k), 0.01)
             fac=AMIN1(((dtcrit-dtmin(i, k))/dtcrit), 1.0)
             w=(1.-beta)*fac*SQRT(cape(i))+beta*w0(i, k)
             amu=0.5*(sig(i, k)+sigold(i, k))*w
             m(i, k)=amu*0.007*p(i, k)*(ph(i, k)-ph(i, k+1))/tv(i, k)
             w0(i, k)=w
          endif

       end do
    end do

    do i=1, ncum
       w0(i, icb(i))=0.5*w0(i, icb(i)+1)
       m(i, icb(i))=0.5*m(i, icb(i)+1) &
            *(ph(i, icb(i))-ph(i, icb(i)+1)) &
            /(ph(i, icb(i)+1)-ph(i, icb(i)+2))
       sig(i, icb(i))=sig(i, icb(i)+1)
       sig(i, icb(i)-1)=sig(i, icb(i))
    end do

  end SUBROUTINE cv30_closure

end module cv30_closure_m
1	module cv30_closure_m
2
3	implicit none
4
5	contains
6
7	SUBROUTINE cv30_closure(nloc, ncum, nd, icb, inb, pbase, p, ph, tv, buoy, &
8	sig, w0, cape, m)
9
10	! Vectorization: S. Bony
11
12	use cv30_param_m, only: alpha, beta, dtcrit, minorig, nl
13	use cv_thermo_m, only: rrd
14
15	! input:
16	integer, intent(in):: ncum, nd, nloc
17	integer, intent(in):: icb(nloc), inb(nloc)
18	real pbase(nloc)
19	real p(nloc, nd), ph(nloc, nd+1)
20	real tv(nloc, nd), buoy(nloc, nd)
21
22	! input/output:
23	real sig(nloc, nd), w0(nloc, nd)
24
25	! output:
26	real cape(nloc)
27	real m(nloc, nd)
28
29	! Local:
30	integer i, j, k, icbmax
31	real deltap, fac, w, amu
32	real dtmin(nloc, nd), sigold(nloc, nd)
33
34	!-------------------------------------------------------
35
36	! Initialization
37
38	do k=1, nl
39	do i=1, ncum
40	m(i, k)=0.0
41	enddo
42	enddo
43
44	! Reset sig(i) and w0(i) for i>inb and i<icb
45
46	! update sig and w0 above LNB:
47
48	do k=1, nl-1
49	do i=1, ncum
50	if ((inb(i) < (nl-1)).and.(k >= (inb(i)+1)))then
51	sig(i, k)=beta*sig(i, k) &
52	+2.alphabuoy(i, inb(i))*ABS(buoy(i, inb(i)))
53	sig(i, k)=AMAX1(sig(i, k), 0.0)
54	w0(i, k)=beta*w0(i, k)
55	endif
56	end do
57	end do
58
59	! compute icbmax:
60
61	icbmax=2
62	do i=1, ncum
63	icbmax=MAX(icbmax, icb(i))
64	end do
65
66	! update sig and w0 below cloud base:
67
68	do k=1, icbmax
69	do i=1, ncum
70	if (k <= icb(i))then
71	sig(i, k)=betasig(i, k)-2.alphabuoy(i, icb(i))buoy(i, icb(i))
72	sig(i, k)=amax1(sig(i, k), 0.0)
73	w0(i, k)=beta*w0(i, k)
74	endif
75	end do
76	end do
77
78	! Reset fractional areas of updrafts and w0 at initial time
79	! and after 10 time steps of no convection
80
81	do k=1, nl-1
82	do i=1, ncum
83	if (sig(i, nd) < 1.5.or.sig(i, nd) > 12.0)then
84	sig(i, k)=0.0
85	w0(i, k)=0.0
86	endif
87	end do
88	end do
89
90	! Calculate convective available potential energy (cape),
91	! vertical velocity (w), fractional area covered by
92	! undilute updraft (sig), and updraft mass flux (m)
93
94	do i=1, ncum
95	cape(i)=0.0
96	end do
97
98	! compute dtmin (minimum buoyancy between ICB and given level k):
99
100	do i=1, ncum
101	do k=1, nl
102	dtmin(i, k)=100.0
103	enddo
104	enddo
105
106	do i=1, ncum
107	do k=1, nl
108	do j=minorig, nl
109	if ((k >= (icb(i)+1)).and.(k <= inb(i)).and. &
110	(j >= icb(i)).and.(j <= (k-1)))then
111	dtmin(i, k)=AMIN1(dtmin(i, k), buoy(i, j))
112	endif
113	end do
114	end do
115	end do
116
117	! the interval on which cape is computed starts at pbase :
118
119	do k=1, nl
120	do i=1, ncum
121
122	if ((k >= (icb(i)+1)).and.(k <= inb(i))) then
123
124	deltap = MIN(pbase(i), ph(i, k-1))-MIN(pbase(i), ph(i, k))
125	cape(i)=cape(i)+rrdbuoy(i, k-1)deltap/p(i, k-1)
126	cape(i)=AMAX1(0.0, cape(i))
127	sigold(i, k)=sig(i, k)
128
129	sig(i, k)=betasig(i, k)+alphadtmin(i, k)*ABS(dtmin(i, k))
130	sig(i, k)=amax1(sig(i, k), 0.0)
131	sig(i, k)=amin1(sig(i, k), 0.01)
132	fac=AMIN1(((dtcrit-dtmin(i, k))/dtcrit), 1.0)
133	w=(1.-beta)facSQRT(cape(i))+beta*w0(i, k)
134	amu=0.5(sig(i, k)+sigold(i, k))w
135	m(i, k)=amu0.007p(i, k)*(ph(i, k)-ph(i, k+1))/tv(i, k)
136	w0(i, k)=w
137	endif
138
139	end do
140	end do
141
142	do i=1, ncum
143	w0(i, icb(i))=0.5*w0(i, icb(i)+1)
144	m(i, icb(i))=0.5*m(i, icb(i)+1) &
145	*(ph(i, icb(i))-ph(i, icb(i)+1)) &
146	/(ph(i, icb(i)+1)-ph(i, icb(i)+2))
147	sig(i, icb(i))=sig(i, icb(i)+1)
148	sig(i, icb(i)-1)=sig(i, icb(i))
149	end do
150
151	end SUBROUTINE cv30_closure
152
153	end module cv30_closure_m